Small. Quaint. Excellent beans. The go to spot for a japanese style iced coffee. Which is the hot coffee ground slightly different and brewed right on top of a cup of ice. They have tons of styles of beans and they roast everything in house. Their hot coffees are also very good.They occasionally have cold brews that they make from a drip tower but iced coffees tend to have more awesome flavors so the cold brew is more for gulping.This place has the best coffee in the bay.It doesnt have a huge building like states does but thats so it can pass the savings on to you 😉.

Good stuff. Not sure what I was brought, all I asked for was a good black cup of coffee. Excellent sour notes.Outdoor seating to boot.

They make really good coffee. What else needs to be said?

It was an afternoon of treats and decided to round it out with a Mocha. Super good. Will def go back!

It was good but cups are small.

We really liked this lovely coffee shop! Barista was welcoming, friendly and knowledgeable about coffee. We had Colombia and Ethiopia, both were really good! We will definitely come back.

Absolutely great macchiato! And my cream brûlée more than expected!! So far better than any other.Service? Oh my God! I think this is a wow place. Thanks for do the best for us, coffee ☕️ lovers. I wish you the best, I hope to come back soon, because I don’t usually have too many things to do in this area.

Locally roasted. Friendly service. Coffee made fresh, one cup at a time. Mountain grounds will ruin other coffee for you, nothing else compares.

Excellent coffee and extremely friendly service. I have made it my regular stop

Love this place. People are cool. Theyll bring your food out to the car if its not too busy.

Great cappuccino and customer service!

The coffee was really good and the owner is extremely nice and welcoming. I will definitely be coming here regularly

Tasty coffee, they roast themselves and take pride in the quality. Ask about their gold bean medals. Breakfast sandwiches arent bad either! They are especially delicious when they have the onion and peppers added!

Great coffee shop with a variety of of beans and hearty made to order breakfast sandwiches.

Not very happy with this place. Theres no customer service and my drink had no taste. I ordered a panini of the day and this is what I was served. At the time I wanted to ask for it to be remaid or even a different one but the customer service was so bad I didnt want to add another problem. Ive been here once before and was truly happy. I think the staff seemed new and that may have something to do with it.

Great Mexican Mocha!!

Great food, I have not tried the coffee yet but Im sure it is amazing as well!!! The staff are super friendly as well!!!

Great Oat Milk Late!

Very friendly staff that really know their coffee! Down to earth place, tasty beverages, and none of the pretentiousness you get at other places. Give them a try!

Quick and friendly. Oh the coffee is awesome!

Wonderful service and product

Great coffee, great staff. You can text your order ahead and have it ready when Im you arrive which is amazing. The do drip coffee so it does take a moment but that makes it better. No dark roasts but medium and light roasts.

This little coffee shop is so much better than Starbucks and their breakfast sandwiches are to die for!!! Definitely need to stop by

Very friendly staff! The coffee is very unique and delicious. Even though their shop isn’t big at all, this is now my new favorite coffee shop!

Best cup in town . Friendly spot to relax .

Mocha was super good - she suggested iced? even more super better!

Always great. The staff is awesome and coffee is so much better than Starbucks.

A hole in the wall, so to speak, but the coffee, vibe, staff, and egg sandwiches warrant many return visits. Its a friendly, comfy place to hang out without the frenzied atmosphere of the big coffee chains. All of the drip coffee is made pour over style!

Mountain grounds is one of the most wonderful experiences Ive ever had. The coffee is super delicious. Where can you go to this coffee shop the people that are make you feel extremely comfortable its like youre visiting old friends. You have to experience if its wonderful Siri great coffee great company delicious pastries

Cute little place with a surprisingly lovely loose leaf tea offering. The service was awesome. One barista holding it down, but his chill, customer service focused attitude made it seem like a breeze. Really solid little spot!

This place awesome is right across the street from the front porch its an urban restaurant in San Francisco that really rocks awesome awesome

Very nice coffee and knowledgeable staff when it came to my order. Had a excellent chemex and hung around for a second round with a flat white. Very happy with my coffee there!

This is a thank you note for delivering a cup of coffee to my Navy shipmate in Martinez who couldnt leave his house because his wife is critically ill. You folks are the BEST! How wonderful to have small business owners like you in our world. Wishing you continued success - you have earned it!

The coffee they do here is amazing. Out favorite coffee place starting from today. Thank you.

This place has amazing tea lemonade. I would recommend mixing mango and passion fruit together it makes for amazing combination my friend I was with got the strawberry and she really enjoyed it as well. The service was also very good and enjoyable.

One of the best little coffee shops i have been to. They know their stuff and take real care to make your coffee right. My pour overs were artfully done, it was a pleasure watching them work.The sandwiches make it an awesome one stop shop.

Small local coffee shop serving a great selection of beans as well as drinks made from desired coffee of choice. Place has a few tables for outside seating. Every single person I have had an encounter with at this place has been cordial and very very nice. Come for a cup of joe and leave energized and happy!

Everything I wanted in an independent coffee shop.

Good coffee and friendly barista. Great way to start the morning.

Come to Mtn Grounds and have a delicious cup of civic pride. Their cappuccinos will change your life. They also have excellent teas, like the Golden Needle. You can thank me later!

Finally a coffee spot that makes an iced coffee frappe without added syrup! Its perfect! Cold, creamy, and great coffee taste...no weird after taste or sugary syrup. Staff was super friendly and helpful.

Love this place! The house spicy chia is the best! They see us coming in and know exactly what we want and get it started right away!

A Gem of a place, in a hole in the wall. Love the fresh roasted coffees each week. If you havent tried fresh roasted, you should. Super friendly staff too.

Great service, friendly barista. I really appreciate good coffee. Came from San Jose. Definitely my stop by place when around this area.

The staff here is always friendly. The food and drinks are well prepared, taste great, and different from other local coffee shops.

Every worker was delightful and helpful with great dispositions. The place is anxiety inducing small to the fullest but the staff and coffee is worth it! New place for me to hit up before my massage every two weeks!

Fantastic, honest little coffee shop off the highway. The staff is very helpful and friendly. They are very eager to please and seem to have a host of regular customers.

Excellent coffee and staff. Theyre passionate about good coffee and you can taste the difference.

Will your coffee take a while? of course! Because these guys know what they are doing, and they clearly long their coffee. Make sure to ask them what coffee you should get. I have never been let down by their recommendations.

Nice place. Good hot apple cider. Kind of a small space, but they have outdoor seating too.

Great service, my grand daughter took me there. Its her favorite place to hang out.

One of the best cups of coffee I have ever had in my life. They do the pour over method with high quality beans, and their prices are so reasonable, its insane. You would pay twice the price for a cup of burned beans at a chain coffee place.

This place is alright. The coffee beans smell good.

Excellent coffee grown for establishment. Friendliest service youll ever find. Kinda small but has a few tables outside. Well worth the stop.

Pretend to be fancy and “third wave”, but instead is way too small of portions, overpriced, and bland.

Great quality coffee. Perfect for pour overs, lattes, and even a quick bite to eat. If you can grab a table, the creme brûlée latte is a must.

Iced mocha with a shot of amaretto syrup is fantastic. Thanks guys.

Owners are fantastic people. Best San Francisco smog (London fog) Ive had, made with their secret ingredient. You definitely need to go here. Now.

My go to place, great coffee, great cause, great people checkem out!

Great place to relax and get some work done

Love this coffee shop, great service everytime!

I visited the area for a week. Mountain Grounds Coffee shop was the best and friendliest place to get a coffee. The coffee is is also super super good.

This is my favorite coffee shop in CoCo County. They do coffee really well. Everything is good here.

Cant get enough 925 blend. Super friendly vibes and amazing coffee every time.

Small coffee place. Great coffee, the people that work there are super nice and will make you pretty much anything you want or modify things to your liking.

Best coffee place ever! Fresh roasted beans every week. If you never had fresh roasted coffee, youve been missing out. Must try it!

The place is small and they take their time making the coffee. But man they taste sooo good

As a barista, this is a great place for a latte. My personal favorite is a house special where they top your latte with creme brulee. Awesome.

Not overly friendly staff, coffee was OK but nothing to write home about. ***Edit*** OK so on top of everything above when I finally opened the bag I picked up it was whole bean instead of the ground I specifically asked for and verified they could do. So not only was the staff not friendly, the coffee just meh but they couldnt even get the order right. Now I need a grinder in addition to the previous inconvenience.

Awesome fresh coffee. The tuxedo is highly recomended!!!!!

Way better than States coffee!! John rules!

Finally a great mom and pop espresso shop! When you meet the owner you see a dream in motion. This is my new morning ritual.

Quiet little place...best part they hand made my coffee right infront of me...so cool

Good little coffe shop, they give me a good experience on the way to drink coffee, they have coffe drink, call it: fire end cold, thats so good .Iwill to recommend to try it to everyone.

Amazing coffee. You can text ahead your order if you are in a hurry, otherwise enjoy the friendly, relaxed atmosphere while you enjoy superbly roasted, prepared coffee.

Very nice staff! Also very helpful and informative.

A tiny place packs with great organic fair trade coffee.

Upbeat staff, international coffee choices, bakery items to nibble & a cozy casual atmosphere. :)

The best coffee in East Bay

These people are true artisans and took the time to open there shop after hours for my group. They explained the process and gave much insite, making it an experience not just a coffee.

ALWAYS top grade coffee, made with beans grown by fairtraded owner-operated farms! Im fussy about the flavor/bouquet of my coffee and if I try a new bean and I dont care for it, the baristas are always happy to remake my order!!

Great coffee and not a chain store.

Great coffe

Best coffee in town if not bay area

Great service and great coffee

An experience not just coffee. Im a coffee addict, and let me tell you that there is no other cup like mountain grounds. I work in Walnut Creek and live in Bay Point but theres still only one coffe shop I go to now. If you havent tried them, give them a chance and youll never turn away. What theyve created in this shop is gold, and I will only have good things to say about this place. From the service and staff to the unbeatable taste, this place has everything under one roof.Friends dont let friends go to starbucks.

Ruined all other coffee for me. My home away from home!

Good quality espresso drinks and friendly staff.

Awesome pour overs!

Was preety good

Very positive happy energy!

Fantastic locally roasted Coffee! Very friendly staff:-)

Grest coffee &r staff.... my goto place in contra costa County

A nice alternative to SB! Friendly, personal, good!

The large cold brew kept me hopping all day. Friendly people and reasonable prices.

Great cup of coffee, friendly staff.

Fabulous coffee, very friendly staff, community feel.

Unless you like waiting for 15 minutes for a 3 dollar cup of coffee then maybe this isnt the place for you...Also add a little extra time if during your 15 minutes one of their friends walks in because somehow water boils faster for them...

I not go there, i went 2 subway, it was ok

Great staff, great coffee, nuff said.